[ndgrigorian]

This PR fixes tests that allocate shared, host, or device USM so that they skip on devices without the corresponding usm_*_allocations aspect

The check already used by the memset and fill tests is moved into dpctl/tests/helper as skip_if_usm_unsupported

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[github-actions]

View rendered docs @ https://intelpython.github.io/dpctl/pulls/2418/index.html

[coveralls]

coverage: 74.963%. remained the same — fix-tests-for-unsupported-usm-types into master